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Carbohydrate recognition and lysis by bacterial peptidoglycan hydrolases

AutorAlcorlo, Martin; Martínez-Caballero, S.; Molina, R.; Hermoso, Juan A.
Fecha de publicación2017
CitaciónCurrent Opinion in Structural Biology 44: 87- 100 (2017)
ResumenThe major component of bacterial cell wall is peptidoglycan (PG), a complex polymer formed by long glycan chains cross-linked by peptide stems. PG is in constant equilibrium requiring well-orchestrated coordination between synthesis and degradation. The resulting cell-wall fragments can be recycled, act as messengers for bacterial communication, as effector molecules in immune response or as signaling molecules triggering antibiotics resistance. Tailoring and recycling of PG requires the cleavage of different covalent bonds of the PG sacculi by a diverse set of specific enzymes whose activities are strictly regulated. Here, we review the molecular mechanisms that govern PG remodeling focusing on the structural information available for the bacterial lytic enzymes and the mechanisms by which they recognize their substrates.
Identificadoresdoi: 10.1016/j.sbi.2017.01.001
issn: 1879-033X
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